
.clearfix {
    zoom: 1;
}

    .clearfix:after {
        clear: both;
        content: ".";
        display: block;
        height: 0; /* Chieu cao cua thanh phan bang 0 */
        line-height: 0; /* Khoang cach cua dong` bang 0 */
        visibility: hidden; /* Xac dinh thanh phan khong dc nhin thay */
    }

body {
    font-family: Tahoma,Arial,sans-serif;
    font-size: 12px;
    color: #333333;
}
